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NEET CHEMISTRYBiomoleculesMedium

Question

RNA and DNA are chiral molecules, their chirality is due to:

A

L-sugar component

B

chiral bases

C

chiral phosphate ester units

D

D-sugar component

Step-by-Step Solution

The chirality of DNA and RNA is due to the presence of their pentose sugar components, which are D-ribose in RNA and D-2-deoxyribose in DNA. These sugar molecules contain multiple chiral carbon centers. In contrast, the nitrogenous bases (purines and pyrimidines) are planar and achiral, and the phosphate ester units are also achiral.

Exam Context & Concepts Covered

This question aligns with the NEET CHEMISTRY syllabus, specifically targeting concepts from Biomolecules. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.

CHEMISTRYBiomoleculeschiralmoleculeschirality

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